A venturi (narrowing of a tube) that can be changed. Usually refers to a carburettor. See also Variable Venturi Carburettor.

See Variable Choke Carburettor.

A burnt gum deposit from petrol that forms in the inlet tract of carburettors and on piston skirts.

Vane Air Temperature Sensor.

Viscous Converter Clutch

Vehicle control module. An electronic control unit that controls a wide range (or all) of the vehicle functions.

Volts Direct Current

Drive belt made with a V section.

Another name for the binder, into which all of the other ingredients of a paint mixture are added. This includes pigment solvents, diluents, resins, driers, etc.

The formation of a web or strings in a paint as it emerges from a spray gun, usually caused by too high viscosity, low atomising air pressure or a combination of both.